BMW 3 4 Series F80 M3 F82 M4 1 DSC Hydro Braking Unit Pump 8089697 7851297

BMW 3 4 Series F80 M3 F82 M4 1 DSC Hydro Braking Unit Pump is an original BMW braking system component, designed for the 3 Series F80 M3 and 4 Series F82 M4 models. It is a specialized hydraulic pump integrated with the DSC module, responsible for precise pressure control within the braking system and coordination with vehicle stability control systems. Thanks to its factory origin, it ensures consistency with the vehicle's electronics and predictable handling in dynamic conditions.

Specifications and technical data

• SKU: 7851298-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7851297
• Substitutable numbers: 34517851297, 7851297, 8089697, 7851298, 7852637
• Category: Other Brake Parts

Purpose and function in the braking system

The presented DSC hydraulic pump is the component responsible for generating and modulating pressure in the braking system, working in conjunction with the Dynamic Stability Control system. In practice, this means that this component:

• supports the operation of ABS, DSC, and other active safety functions,
• enables precise distribution of braking force to individual wheels,
• ensures stable vehicle behavior during emergency braking and evasive maneuvers.

By using an original BMW solution, full compatibility with factory controller software and the vehicle's electrical architecture is maintained, which is crucial for the proper operation of driver assistance systems.

Compatibility with BMW F80 M3 and F82 M4

The DSC hydraulic pump has been designed to meet the specific requirements of the BMW F80 M3 and F82 M4 models, where the braking system and stability systems are adapted to higher loads and the car's sporty character. Using a dedicated component allows for maintaining:

• consistency of operating parameters with factory DSC control maps,
• proper braking system response at high speeds,
• correct cooperation with other electronic modules of the vehicle.

By choosing an original BMW component, you minimize the risk of communication errors in the vehicle's bus and problems with safety system calibration.

Product characteristics and condition

The offered DSC pump comes from the group of original BMW components, which means it maintains factory manufacturing standards, material quality, and construction. The item is in used condition, which in practice allows for combining high technical compliance with an attractive price compared to a new part. For workshops and individual users, this means the possibility of an economical braking system repair while maintaining OEM specifications.

Before installation, a standard diagnostic procedure and bleeding of the braking system in accordance with the vehicle manufacturer's guidelines are recommended to fully utilize the component's potential and ensure stable operation of the DSC and ABS systems.

Why choose an original BMW DSC pump

Using a factory DSC hydraulic pump in the BMW F80 M3 and F82 M4 brings a number of technical benefits:

• Full integration with vehicle electronics – the module works with factory controllers without the need for installation modifications.
• Predictable vehicle behavior – original stability and braking system characteristics are maintained.
• Consistency with BMW service documentation – facilitates diagnostics, coding, and potential software updates.
• Solution compliant with M-version design assumptions – adapted to higher operational loads.

Braking system expansion and related components

If you are planning a comprehensive repair or upgrade of the braking zone in your BMW and need other elements from the same group, such as calipers, lines, or additional control modules, check the available parts in the Other BMW category.

For users interested in comparing solutions used in sports versions of different brands, including advanced braking and chassis systems, an article discussing the differences between high-performance and standard versions may be helpful – you can find it here: Audi RS vs other models – what is hidden under the hood and chassis?.

If you want to better plan your repair budget and understand how to utilize the potential of used OEM components in your car's service, it is also worth reading the guide on service cost optimization: Rising repair costs and the boom in used parts – how to save on car service?.